Curtain-stretcher.



G. H. BAKER. CURTAIN STRETCHER.

APPLICATION FILED APR. 26. ms.

1,235,41 4. I Patented July 31, 1917.

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GEORGE H. BAKER, OF FRUITLANID, MISSOURI.

CURTAIN-STRETGHER.

1,235AJA.

Application filed April 26, 1916.

To aZZ whom it may concern:

Be it known that GEORGE I-I. BAKER, a citizen of the United States, residing at Fruitland, in the county of Cape Girardeau and State of Missouri, has invented certain new and useful Improvements in Curtain- Stretchers, of which the following is a specification.

The present invention relates to certain new and useful improvements in curtain stretchers and has for its primary object to provide a collapsible stretching frame which may easily and quickly be set up for holding a curtain, and readily knocked down for storage.

Further, the invention resides in an improved corner clamp or fastening for uniting the side and end frame members.

Other ends will be set forth as the description progresses and those features of construction, arrangements and combinations of parts on which protection is de sired will be claimed in a succinct manner.

In the drawings, wherein is depicted the preferred embodiment of the invention, and wherein like characters of reference designate like parts throughout,

Figure 1 is an elevation of the improved frame;

Fig. 2 is a section on line 22 of Fig. 1 showing the invention;

Fig. 3 is a side elevation of the corner fastener;

Fig. 4 shows the blank which the fastener embodies;

Fig. 5 is a detailed elevation of the cam; and Fig. 6 is a perspective view of a fastener used in securing a curtain to the frame.

Each corner fastening for connecting the frame bars, comprises the body plate 1, of rectangular design, having flanges or wings 2 projecting outwardly from the edges of the body. These wings are bent at right angles to the body and in oppositely projecting pairs to form a channel on each side of the body, the channel on the top side being at right angles to that on the bottom side, and the wings 2 constituting side walls for said channels.

Hinged to the upper edge 3 of one wall of each channel is a keeper bar or plate 4 which is adapted to span the channel and rest on the other wall thereof. To the free end of keeper 4 is; hinged a hasp 5 which is provided with a perforation for engaging Specification of Letters Patent.

Patented July 31, 1917.

Serial No. 93,694.

over a pin 6 extending outwardly from the side face of the last channel wall.

In practice, the right angularly related ends of the frame bars 7 and 8 are seated in the channels against body 1 and the keeper plates then swung across to permit of the hasps being engaged with the pins 6, thereby locking the frame bars against dislodgment.

As a further means for securing the frame bars in their respective channels, cam locks 9 are provided, these being pivotally mounted between cars 10 struck out from, or otherwise formed on, one of the wings of each pair. The biting or active face of each cam lock is formed with two sets of serrations 11 which are reversely related so that the respective set of the serrations may be used for effectively gripping the frame bar regard less at which end of the latter the corner astening is disposed. These cam locks op erate through slots or openings 12 formed in the wings between the supporting ears 10, and are especially adapted for positively holding both large 'and small frame bars. Suitable means may be employed for securing a curtain to the stretcher frame, although I have shown a preferred fastener in Fig. 6 which comprises resilient jaws 20 and 21 joined by a spring coil 22, the upper jaw 20 terminating in a hook 23 over which the curtain may be engaged. A series of these fasteners are clasped over the outer edges of the frame bars, as shown in Fig. 1, the springy nature of the jaws 20 and 21 affording suficient friction to hold the fasteners in position.

Thus, it is obvious that the present corner fastener may be cheaply constructed from sheet metal, that the device embodies simplicity and durability, and that the frame bars may easily and quickly be secured in the fastener.

What is claimed is:

1. In a device of the character described, a sheet metal body having wings bent at right angles from the edges in oppositely projecting pairs to form a channel on each side of the body, said channels being disposed at right angles to each other and adapted for receiving frame bars, a keeper plate hinged to one of the wings defining each channel and adapted for spanning the latter and receiving support from the edge of the wing, a pin fixed on the side face of the latter, and a perforated hasp hinged to the free end of the l'eeper nncl' engaging over the pin.

2. in a (lei'ice of the character clescrihecl, n sheet metal hotly having Wings bent at right angles from the edges in oppositely projecting pairs to form a channel on ench sicle of the body, nicl channels being clisposed at right angles to each other e116 adapted for re eiving frznie bars, akeeper plate hinged to one of the Wings chaining each channel and urlnptecl for spanning L latt 1 and receiving snppi it from the eclge oi' the wing, and. means for securing the free end of the keeper to the last Wing.

In a oevice of the character lflescrioecl, a sheet metal hotly having Wings bent right angles from the edges in opoositely projecting pairs to form n channel on each sicle of the bOCljF, said channels being 61sj-osecl at right angles to each other nno adapted for recei rlng fi'nne he J, one of the Wings defining each channel being formed i i en nizangcd on with an opening, the Wing on opp r l and a cum pivoten 3e M3011 each nnir ol ears I l and ope 'zit'ing through the lying openinsz.

l. in a (lQYlCE of the character clescrihecl, 9. sheet metal hotly herring Wlllg" bent at right angles l'roin the edges in opposit ly Geiee n his patent may obtaine for projecting pairs to form a channel on each side of the body, snicl channels being (lisnosecl at right angles to each other and eclnntecl for receiving frnnie hers, one of the n ngs defining each channel being formed with an ogening, a pair of ears arranged on the sing on opposite sicles of the opening, n

sn *ivolecl J et-Wcen each pair of ears anal through the Wing opening, a

with which the resgective keeper is adapted to engage.

In testimony whereof I have atfixecl in signs-.tnre in the presence of two Witnesses. GEQR-GE- H. BAKER. llitnesses 0H3 H. GREEN, Jenn ls. Gnnnn, Jr.

five cents each, by addressing the Commissioner of Eatents, 

